Compressed-gas generator.



H. PARZELLER. COMPRESSBD GAS GENERATOR. APPLICATION FILED NOV. 2, 1908.

Patented. Apr. 18, 1911.

HEINRIGH PANE-LDER, 0F ESSEN-ON-THE-RUHR, GERMANY.

OOMPBESBED-GAB GENERATOR.

Specification of Letters Patent.

Patented apr. is, ieri.

Application tiled November 2, 1908. Serial No. 460,672.

.To all whom it may concern.'

Be it known that I, Hninnroir Panznnnnn, a subject of the German Emeror, and residing at Essen-ontheRuhr, ermany, have invented certain new and useful Improvements in Compressed-Gas Generators, of which the following is a specification.

The subject-matter of the present invention is a device which, employing a mixture of atmos heric air with aeriform gases or gasiied iquid fuels, supplies an uninterrupted current of gases under pressure for driving rime movers, turbines, and the like.

- In or er that the invention ma be clearly understood reference will be ma e to the accompanying drawing in which embodiments are represented diagrammatically by way of example, and in which- Figure 1 is an elevation, partly in section, showing the general arrangement of a compressed (gas generator, whereas Figs. 2 and 3 are si e elevation, partly in section, and end elevation, respectively, of a Imodified form of part of the device shown in Fig. 1.

The manner in which the plant operates is as follows: Compressed air at a certain tension flows at 1 into the mixing nozzle 2 where the air mixes with the gas or combustible vapor -which enters'at 3 and the flow of which can be regulated by the stop# cock 4, wh'ereu on the gaseous mixture flowing through t e admission valve 5 presses down the piston 6 of the latter to the point 7 and passes through the orilce in the valve-box and through the ipe 9 into the explosion chamber 10. The oad on the relief valve 11, which connects the chamber 10 with the storage receptacle 12, is so proportioned that it does not normally give way to the pressure of the, gaseous mixture to which it 1s exposed and no more gas flows into the storage receptacle 12. Now as soon as the mixture in the combustion chamber 10 has become compressed to the tension of the compressed air entering at,1, and consequently the latter is no longer at an excess pressure, the admission valve 5 closes automatically, the valve piston 6 being raised onto its seat 14 in consequence of the diminishing pressure from 1 and on account of the action of -the weight 13 on the lever 15 with which the piston 6 is connected. At thisl moment the set-screw 16 which is arranged adjustably on the extreme end of the lever arm 15 directed toward the explosion chamber 10 contacts with the upper contact spring= `the mixture of gases.

18 of the two contact s tached on the lgiace of lnsulation 17, so that. the circuitof t e battery 20 is closed by of an ignition coil 21 and a spark Jumps across at 22 in the chamber 10 and ignites Under the pressure of the exploded gases the relief valve 11 o ens and allows a portion of the gases in c amber 10 to fiow into the storage receptacle 12 until the same ressure exists in this as in the chamber 10, w iereupon the valve 11 closes automatically. Since the direct force of the explosion would destroy the turbine, prime mover, or the like, and the devices connected in front of it, the one end of t-he pipe 23 which conducts the gases into the Aengine is closed, but the sides of the pipe are "provided instead with many fine holes 24; these together correspond in area to the clear diameter of the pipeA and are covered by muifs 25 which are arranged one over another or concentrically with spaces left between them. The tirst blow of the gaseous mixture which explodes with great violence and which enters this checking device at 26 is received by the interior end face 27 of the exterior inuit', and in addition the current of gas is sent several times to and fro parallel to its direction of motion and itsv ving'force is for the most part dissipated. From the innermost mui the current of gas passes through the fine holes 24, in which it is throttled considerably more, into the interior ofthe pipe 23 and on through the outlet valve 28, relief valve 39 and the nozzle 31 into the engine, turbine, or the like. When, at la-st, the expanded gas inclosed in the explosion chamber 10 is consumed to such an extent that the tension sinks below the` driving pressure of the engine or turbine, the piston 6 of the admission valve 5 at the explosion chamber begins to descend in consequence of the diminishing tension in chamber 10 and the pressure acting from l, and at once opens the outlet or discharge valve 30 at ther storage rece tacle 12 which is positively connected by t e rod 29 with the lever arm 15 of valve 5,l Whereas the outlet valve 28, which is also connected by the rod 29 with the valve 5, remains open for a short time by virtue of its arran ement which is more particularly describe hereafter and is closed only after the valve\5 for.

admitting the gaseous mixture has been completely opened.

The purpose of the outlet valve 28 of the way 'prings 18 and 19 ati explosion chamber remaining open after the like device 30 at the storage receptacle Ahas been opened is that, by means of the current of gas which flows out of the latter' receptacle into Athe injector-like part 31 of the pipe 23 or 40, the residues of gas after the explosion which are still inl the explosion chamber may be carried away in consequence of the suction action of the current of gas, and thus purify the chamber, and simultaneously acertain reduced pressure is produced in it which makes it suitable for receiving a fresh supply of the gaseous mixture. This is made possible because the piston-rod 32 of the outlet valve 28 is not connected firmly with the hollow valve-piston 33, but tits tightly and is movable in the upper end of the piston 33 which is driven by the collars 34 and 35 into its highestl and lowest positions. In the position of the valves represented in the drawing, as soon as the piston 6 of the valve 5 begins to descend under the pressure of the entering mixture of gases, the valve 30 which is connected with the valve 5 by the rod 29 is at once opened, the slots 36 in its hollow piston 37 being brought yinto agreement with the corresponding annular'opening 38 in the body of the valve. In the meantime, however, the piston 33 of the valve 28 remains stationary for the present on account of friction in the position in which it is 1shown and is depressed only when the collar 35 arrives onto the upper face of the piston 33 when the iow of the gas is interrupted. In order to prevent gas returning during this operation from the pipe 23 or 40 into the explosion chamber, an additional relief valve 39, a clack valve, is arranged in the former pipe behind the outlet valve 28. As long as the Valve30 is open, the inlet valve 5 being not yet quite open on the contrary, or the outlet valve 28 not yet quite closed, the quantity of exploded gas inclosed in the storage recep-' tacle 12 flows through the injector-like device into the prime mover or turbine, taking with it simultaneously any residues of gas `which are still in the explosion chamber.

In this manner, however, a certain reduced pressure 1s produced as compared' wlth that of the mixture which Hows 1n afresh from 8;

the chamber 10 fills again with explosive mixture and the above described working cycle is repeated and takes place in the like manner. Consequently the above described plant supplies an uninterrupted current of gas which now lowing into the explosion chamber 10 and now' into the storage receptacle 12 is conducted through the injectorlike nozzle 31 into the engine or turbine and is here used for doing work.

The throttling device shown in Fig. 1 in chamber 10 at the end of pipe 23 may also be constructed in various other ways. For example it may be made in the manner of labyrinth packing or a corrugated bearing, as shown in Figs..2 and 3, or a part of the pipe 23 may be' bent or wound without alterin its clear cross-sectional area in very di e lto secure by Letters Patentis:

1. A gas-generator comprising an explosion-chamber, a storage-receptacle communicating therewith, a relief-valve interposed between said chamber and saidreceptacle, and separate means for conducting the exploded gases respectively from said recep- A tacle and from s aid chamber.

2. A gas-generator comprising an explosion-chamber, a storage-receptacleV communicating therewith, a relief-valve interposed between said chamber and said receptacle, an admission-valve for the explosion-chamber, a sparkin device in said explosionchamber and a apted to be rendered operative by the movement of said admissionvalve, and means for conducting the exploded gases from said chamber and receptacle.

3. A gas-generator comprising an explosion-chamber, an inlet-pipe for conducting an explosive mixture to the explosion-chamber, an admission-valve in said pipe, a sparking device in said explosion-chamber, and an operative connection between said valve and said sparking device whereby said device is caused to spark when said valve is closed.

4. A gas-generator comprising an explosion-chamber, a sparking device in said explosion-chamber, an admission-valve for introducing an explosive mixture into said chamber,`and automatic means for causing said sparking device to spark when said valve is closed.

5. A gas-generator comprising an explosion-chamber, means for introducing an explosive mixture into said chamber, means for causing said explosive mixture to be exploded, an outlet-pipe leading from said explosion-chamber, a checking deviceat the inner end of the outlet-pipe, a storage receptacle,.a pipe connectmg the receptacle with said chamber, and an additional outlet-pipe leading from the receptacle.

6. A gas-generator comprising an explosion-chamber, a storage-receptacle communicating therewith, an admission-valve for introducing an explosive mixture into said explosion-chamber, an outlet-valve for said explosion-chamber, a discharge-valve for said receptacle, an operative connection between all of said valves, and means for ig- `uiting the mixture in the explosion-chamber.

7. A gas-generator comprising an explosion-chamber, a storage-receptacle having communication therewith, an outlet-pipe leading from said explosion-chamber, and a discharge-pipe communicating with said storage-receptacle and an injector-like part in said outlet-pipe and communicating with they discharge-pipe.

8. A gas-generator comprising an explosion-chamber, a storage-receptacle communicating therewith, a relief-valve interposed between said chamber and receptacle, an inlet-pipe for conducting an explosive mixture to the explosion-chamber, an admissionvalve in said inlet-pipe, an outlet-pipe leading from said explosion-chamber, an outletvalve in said outlet-pipe, a checking device at the inner end of the outlet-pipe, a dis` charge-pipe communicating with said storage-receptacle and terminating in an injector-like part in said outlet-pipe, a discharge-valve in said discharge-pipe, a positive connection between the movable parts of the three valves, a sparking device in the explosion-chamber, and means connected with the admission-valve for operating the sparking device.

9. In a gas-generator, an explosion-chamber having an outlet-pipe terminating therein, said pipe being provided with perforations at its inner end, and overlapping mufs surrounding said end and said perforations.

In testimony whereof, I aiix my signature in the presence of two witnesses.

HEINRICH PARZELLER. [1.. s.]

Witnesses:

O'rro KNIG, WALTER O. SHELLCHAMP. 

